Talking Back

The Loose Wire mailbag is overflowing, so this week we hand the column over to readers' questions and offer some tips on tech issues.

Snarf's Up

First, Bluetooth. I wrote recently about Bluesnarfing, the unpleasant term for the unpleasant process of remotely stealing the data from a Bluetooth-equipped cellphone, or even hijacking the phone to make calls. Readers wanted to know if this flaw extends beyond cellphones to such things as personal digital assistants. (I should stress, however, that there are not millions of...